uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/networking/gnirehtet/default.nix

@@ -0,0 +1,51 @@
+{ lib, stdenv, rustPlatform, fetchFromGitHub, fetchzip, androidenv, makeWrapper }:
+let
+version = "2.5";
+apk = stdenv.mkDerivation {
+  pname = "gnirehtet.apk";
+  inherit version;
+  src = fetchzip {
+    url = "https://github.com/Genymobile/gnirehtet/releases/download/v${version}/gnirehtet-rust-linux64-v${version}.zip";
+    sha256 = "1db0gkg5z8lighhkyqfsr9jiacrck89zmfnmp74vj865hhxgjzgq";
+  };
+  installPhase = ''
+    mkdir $out
+    mv gnirehtet.apk $out
+  '';
+};
+in
+rustPlatform.buildRustPackage {
+  pname = "gnirehtet";
+  inherit version;
+
+  src = fetchFromGitHub {
+      owner = "Genymobile";
+      repo = "gnirehtet";
+      rev = "v${version}";
+      sha256 = "0wk6n082gnj9xk46n542h1012h8gyhldca23bs7vl73g0534g878";
+  };
+  sourceRoot = "source/relay-rust";
+  cargoSha256 = "03r8ivsvmhi5f32gj4yacbyzanziymszya18dani53bq9zis9z31";
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postInstall = ''
+    wrapProgram $out/bin/gnirehtet \
+    --set GNIREHTET_APK ${apk}/gnirehtet.apk \
+    --set ADB ${androidenv.androidPkgs_9_0.platform-tools}/bin/adb
+  '';
+
+  meta = with lib; {
+    description = "Reverse tethering over adb for Android";
+    longDescription = ''
+      This project provides reverse tethering over adb for Android: it allows devices to use the internet connection of the computer they are plugged on. It does not require any root access (neither on the device nor on the computer).
+
+      This relies on adb, make sure you have the required permissions/udev rules.
+    '';
+    homepage = "https://github.com/Genymobile/gnirehtet";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ symphorien ];
+    platforms = platforms.unix;
+  };
+}
+